旋转梁疲劳试验机钢丝失效预测

Case Studies in Nondestructive Testing and Evaluation Pub Date : 2014-10-01 DOI:10.1016/j.csndt.2014.04.001

Elizabeth Thompson , Rahul Basu , Timothy Loos

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引用次数: 3

摘要

目的研究疲劳试验中钢丝即将失效的预测方法。方法探索了测量振动、位移和红外特征变化的传感器，并研究了原位视频记录的能力，以捕捉金属丝形状的变化。结果视频记录似乎是研究中最有前途的方法。结论它在单链和多链构型上都有应用前景。进一步的调查可能包括图像/视频处理。可以用来确定疲劳循环数到完全断裂是否是多股钢丝疲劳寿命的准确度量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Wire failure prediction for a rotary beam fatigue tester

Objective

This work investigates methods for predicting imminent wire failure during fatigue testing.

Methods

Sensors that measure changes in vibration, displacement, and infrared signatures were explored, and in-situ video recording was studied for its ability to capture changes in the shape of the wire.

Results

Video recording appears to be the most promising of the methods investigated.

Conclusion

It has promise for both single and multi-strand configurations.

Practice

Further investigations could include image/video processing.

Implications

Could be used to determine if the number of fatigue cycles to complete fracture is an accurate measure of the fatigue life of multi-stranded wire.

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